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4 Reference Pages
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glIsQuery"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glIsQuery — determine if a name corresponds to a query object
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><p><code class=
"funcdef">GLboolean
<b class=
"fsfunc">glIsQuery
</b>(
</code>GLuint
<var class=
"pdparam">id
</var><code>)
</code>;
</p></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>id
</code></em></span></dt><dd><p>
5 Specifies a value that may be the name of a query object.
6 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
7 <code class=
"function">glIsQuery
</code> returns
<code class=
"constant">GL_TRUE
</code> if
<em class=
"parameter"><code>id
</code></em> is currently the name of a query object.
8 If
<em class=
"parameter"><code>id
</code></em> is zero, or is a non-zero value that is not currently the
9 name of a query object, or if an error occurs,
<code class=
"function">glIsQuery
</code> returns
<code class=
"constant">GL_FALSE
</code>.
11 A name returned by
<a href=
"glGenQueries.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGenQueries
</span></span></a>, but not yet associated with a query object
12 by calling
<a href=
"glBeginQuery.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBeginQuery
</span></span></a>, is not the name of a query object.
13 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
14 <a href=
"glBeginQuery.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBeginQuery
</span></span></a>,
15 <a href=
"glDeleteQueries.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteQueries
</span></span></a>,
16 <a href=
"glEndQuery.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glEndQuery
</span></span></a>,
17 <a href=
"glGenQueries.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGenQueries
</span></span></a>
18 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
19 Copyright
<span class=
"trademark"></span>©
2005 Addison-Wesley.
20 This material may be distributed subject to the terms and conditions set forth in
21 the Open Publication License, v
1.0,
8 June
1999.
22 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
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